This seems really odd. In an Election year, turning down an ally head of state for a simple meeting.

The White House declined Israeli Prime Minister Benjamin Netanyahu’s request on Tuesday to meet U.S. President Barack Obama during a UN conference in New York at the end of the month.

An official in Jerusalem said that the prime minister’s office sent the White House a message stating that although Netanyahu will spend only two and a half days on U.S. soil, he is interested in meeting Obama and is willing to travel to the U.S. capital specifically for that purpose. The official added that the White House rejected the request and said that at this time Obama’s schedule does not allow for a meeting.

The White House’s response marks a new low in relations between Netanyahu and Obama, underscored by the fact that this is the first time Netanyahu will visit the U.S. as prime minister without meeting the president.

Defense Minister Ehud Barak tried to ease the tension on Tuesday, saying that the differences between the U.S. and Israel should be ironed out “but behind closed doors.”

“We must not forget that the U.S. is Israel’s most important source of support in terms of security,” he said in a statement.

Earlier on Tuesday, Netanyahu launched an unprecedented verbal attack on the U.S. government over its stance on the Iranian nuclear program.

“The world tells Israel ‘wait, there’s still time’. And I say, ‘Wait for what? Wait until when?’ Those in the international community who refuse to put red lines before Iran don’t have a moral right to place a red light before Israel,” Netanyahu told reporters on Tuesday.